Electric socket switch



. Patented Sept; 20, 1932 ABCEIE BEZAIJD WOLFE OF SUMMI',`NEW JEBSEYnncrmc soeur swrrcn Application fl1edMa-ch 6,"1 929. Serial No. 344589.i

(GRANTEDUNDER 'mr AUT. or MABGE a; 1833, AS An mimi Arm '30, maa; sro o.e. 7157 My invention relates to improvements in spring force' make andbreak switches adapted to be used for electric light sockets and thelike, and the objects of the improvements 5 are, first, to provide in astandard electric light socket a new` and improved type of spring forcemake and break switch 'of es-' pecial long drability, high efficienc'yand low cost manufacture, andto design said socket 1 to ,accommodatesaid switch; second, to-produce an electric socket switch of low costmanufacture readily designed to be used in x electric light sockets ingeneral and for all electrical 1 spring action make and-break ofel'ectric currents. w y 4 One form of my invention is, illustrated inthe accompanying drawing, in which, Fig. 1 is a view of the top of thesocket from a point vertically aboveits center; Eig. 2 is a Verticalsectional view on the broken line 1--1, Fig, 1,;

showing the switch in the on position; Figure Qa is a similar Viewshowing the switch in the ofi' position; Fig. 3 is -a view of the bottomof the base of said socket showing'the -position of the center contactterminal post and shell terminal post; Fig. 4; is a view in perspectiveof one side of the lower section of the insulation'body ofsaid socketwith all parts of the socket removed except the center contact terminalpost 33, the metal 'contact 31, and the threaded bolt 32, whichelectrically connects said terminal post nd metal contact to each otherand secures themato said lower section;:Fig. 5 is a view of' a part ofthe invention showing the top of the recipro- 'cating control rod ofthe. switch' with the spring cani removed therefrom; Fig. 6 is a View ofthe bottom center contact as removed 9 from said socket; and Fig. '7 isa perspective view of'a part of the invention showing the fulcrum.andpower end of the triple ended contactor of said switch;

Similar numerals refer to similar parts throughout' the several views.

section swtching purposes requiring The threa'ded metal tie bolts 1, and2;'pa ss `through apertures provided in and secure n place the screwshell 3, upper insulation body 4, and lower insu lation body section '5.The threaded nut- 6,' secures sai and is countersunk in the bottom ofaid lower section 5,`and the shell post terminal post 7 is provided witha threaded aperture ,which serves as 'a securing nut for said bolt 2.

A portion of the center contact 8, passes down through an a ertureprovided in section 4 :and is then ent at right angles an f Secured to.said section 4, bythe rivet 9. r One end' of the triple ended bridgemember 10, is fulcrumed and hinged to said center contact 8, by means ofthe tip 11, of said bridge' member which projects through the aperture12, of said center contact 8, and. theshoulder 13, of said bridge member10, bear on'and make contact with. said center contact' 8'. The'tipflange 15, 'of said bridge member 10,'retains said tip 1 1,` within`saidaperture 12, during the ordinary Operating movement allowed sai'dcontactor 10, but the increased movement allowed the latter dur- 7 ingassembl and disassembly of said socket ermits said tip 11, tobe readilyremoved rom or inserted 'n said aperture 12. The power end 16, of aidbridge member 10, is engaged and its movement is controlled by thespring cam 17, which is Secured to the reciprocating' control rod 18.The latter is provided with the insulation handles 19, and 20, whicli'project on the outside of said .section 5, and with'the vertical stops21, and 22, whi h prevent undue elevation during operation of one end ofsaid control rod 18,` and the horizontal stops 23, and'24, see Fig ure.5, which project into the Slots 25 and 26, respectively, see -F igure4:, in said section 5, prevent undue elevation of the other end of saidcontrol rod 18. The bridge member 10 is guide& in its reciprocalmovement by an insulated member 34 bolt 1, 60

disposed withinthe cavity 27 as shownin Fig 'member 10, makescontactwith tact 31, which is countersunk into the upper end of said section 5,projects over said switch'.

v prising an insulation bodfy tively,

switch cavity 27, in theupper end of said section 5, and the cavities28, and 29, ateach end of the bottom of said switch cavity 27,accommodate said handl es 19, -and 20, respecand serve to limit thereciprocatingmovement of said control rod 18.

In .the oi position of the switch as shown in Fig.` 2, the contact end30, of said bridge cavity 27, and is securedin place by the metal bolt32, which passes through an aperture provided in said section 5, and issecured b 'gitudinall the metal conmeans on the outside of saidinsulation body for Operating said spring cam.

4.` In an electric socket,- a switch including a pluralit of switchingcontacts, a triple ended bri one of said Contacts by one of its ends, alonmovable spring cam engagin with anot er of the ends to cause the thirend to engage with or disengage from the other of said Contacts, andmeans for operating said spring cam.

ARCHIE REXALD WLFE.

machine thread to the center contact termi nal post 33, of said socket.

The circuit of the above switch is through I' the binding post 33 forthe center contact, bolt 32, metal contact 31, bridge member 10, centercontact 8, device in shell, bolt 2, and shell binding post 7.

The invention described herein may be manufactured and used by or forthe Government of the United States for governmental purposes withoutthe payment to me of any royalty thereon.

I claim: e

1. In an electric socket comprising a shell, center contact, centercontact terminal post and shell terminal post, a bridge member hinged tosaid center contact, a longitudinally movable spring can for actuatinsaid bridge member, a means o`n the outside of said socket for Operatingsaid spr'n cam, a metal contact engageable with said ridge member, and apermanent electrical connection between said metal'contact' contactterminal post. 2.. In an electric socket comprising a shell, centercontact, center contact termnal post and shell terminal post secured'toan insulation bo y, a triple ended bridge member ,with its fulcrum endhinged to said center contact, a spring cam secured to a control rod andengaging the power end of said bridge member for actuating the latter, ametal contact electrically connected to said center contact terminalpost for engaging the contact end of said bridge member during the onposition of the latter, and a means on the outside of said reciprocatingsaid control rod.

3. In an electrc socket and the like comsupporting the two 'switchingContacts o an electric circuit, a switch comprising a triple endedbridge member withone end hinged to -one of said switching contacts, alongitudinally movable spring cam supported by said insulation body andacting on'and engaging the second end of said bridge member for mo ingthe thrd end into or out of contact with the other of said circuitswitching contacts, and p and center insulation body for' ge memberhingedly connected to 70

